Quantitative measurements were achieved using different techniques associated with an imaging bundle fiber: (1) double-reference beam holography method with continuous wave (c.w.) or pulsed laser; (2) TV-holography with c.w. laser; (3) shearography with c.w. or pulsed laser; (4) real-time holographic interferometry with a repetitive frequency-doubled YAG laser working at 25 Hz. Deformations of a loaded aluminum plate or a rubber membrane were calculated using image processing. A c.w. Ar(+) laser and a pulsed YAG laser were used as light sources. All techniques are described with their components and typical results are presented.
Progress in Holographic and Interferometric Endoscopy
1992
19 pages
Report
Keine Angabe
Englisch
Foreign technology , Image processing , Metal plates , Argon lasers , TV holography , Pulsed lasers , Holographic endoscopy , Rubber , Shearographic endoscopy , Quality Control & Reliability , YAG lasers , Membranes , Continuous wave lasers , Laboratory & Test Facility Design & Operation , Holography , Endoscopy , Real time , Holographic interferometry , Deformation , Aluminum , Nondestructive Testing
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